diff options
Diffstat (limited to 'arch')
41 files changed, 613 insertions, 288 deletions
diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts index e52b82449a79..53994f9fbbcc 100644 --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts @@ -2045,44 +2045,32 @@ thermal-zones { cpu { trips { - trip { + cpu-shutdown-trip { temperature = <101000>; hysteresis = <0>; type = "critical"; }; }; - - cooling-maps { - /* There are currently no cooling maps because there are no cooling devices */ - }; }; mem { trips { - trip { + mem-shutdown-trip { temperature = <101000>; hysteresis = <0>; type = "critical"; }; }; - - cooling-maps { - /* There are currently no cooling maps because there are no cooling devices */ - }; }; gpu { trips { - trip { + gpu-shutdown-trip { temperature = <101000>; hysteresis = <0>; type = "critical"; }; }; - - cooling-maps { - /* There are currently no cooling maps because there are no cooling devices */ - }; }; }; }; diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index ea340f9de448..187a36c6d0fc 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -851,7 +851,9 @@ soctherm: thermal-sensor@700e2000 { compatible = "nvidia,tegra124-soctherm"; - reg = <0x0 0x700e2000 0x0 0x1000>; + reg = <0x0 0x700e2000 0x0 0x600 /* SOC_THERM reg_base */ + 0x0 0x60006000 0x0 0x400>; /* CAR reg_base */ + reg-names = "soctherm-reg", "car-reg"; interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; clocks = <&tegra_car TEGRA124_CLK_TSENSOR>, <&tegra_car TEGRA124_CLK_SOC_THERM>; @@ -859,6 +861,15 @@ resets = <&tegra_car 78>; reset-names = "soctherm"; #thermal-sensor-cells = <1>; + + throttle-cfgs { + throttle_heavy: heavy { + nvidia,priority = <100>; + nvidia,cpu-throt-percent = <85>; + + #cooling-cells = <2>; + }; + }; }; dfll: clock@70110000 { @@ -1154,6 +1165,26 @@ thermal-sensors = <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>; + + trips { + cpu-shutdown-trip { + temperature = <103000>; + hysteresis = <0>; + type = "critical"; + }; + cpu_throttle_trip: throttle-trip { + temperature = <100000>; + hysteresis = <1000>; + type = "hot"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; + }; }; mem { @@ -1162,6 +1193,21 @@ thermal-sensors = <&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>; + + trips { + mem-shutdown-trip { + temperature = <103000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* + * There are currently no cooling maps, + * because there are no cooling devices. + */ + }; }; gpu { @@ -1170,6 +1216,26 @@ thermal-sensors = <&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>; + + trips { + gpu-shutdown-trip { + temperature = <101000>; + hysteresis = <0>; + type = "critical"; + }; + gpu_throttle_trip: throttle-trip { + temperature = <99000>; + hysteresis = <1000>; + type = "hot"; + }; + }; + + cooling-maps { + map0 { + trip = <&gpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; + }; }; pllx { @@ -1178,6 +1244,21 @@ thermal-sensors = <&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>; + + trips { + pllx-shutdown-trip { + temperature = <103000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* + * There are currently no cooling maps, + * because there are no cooling devices. + */ + }; }; }; diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig index 4e484f406419..c58f6841f8aa 100644 --- a/arch/arm/configs/exynos_defconfig +++ b/arch/arm/configs/exynos_defconfig @@ -168,8 +168,6 @@ CONFIG_DRM_PANEL_SAMSUNG_LD9040=y CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=y CONFIG_DRM_NXP_PTN3460=y CONFIG_DRM_PARADE_PS8622=y -CONFIG_EXYNOS_VIDEO=y -CONFIG_EXYNOS_MIPI_DSI=y CONFIG_LCD_CLASS_DEVICE=y CONFIG_LCD_PLATFORM=y CONFIG_BACKLIGHT_PWM=y diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h index 05ec5e0df32d..67532f242271 100644 --- a/arch/arm/mm/fault.h +++ b/arch/arm/mm/fault.h @@ -23,7 +23,6 @@ static inline int fsr_fs(unsigned int fsr) #endif void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); -unsigned long search_exception_table(unsigned long addr); void early_abt_enable(void); #endif /* __ARCH_ARM_FAULT_H */ diff --git a/arch/arm64/boot/dts/nvidia/tegra132.dtsi b/arch/arm64/boot/dts/nvidia/tegra132.dtsi index 2013f8916084..3f3a46a4bd01 100644 --- a/arch/arm64/boot/dts/nvidia/tegra132.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra132.dtsi @@ -4,6 +4,7 @@ #include <dt-bindings/pinctrl/pinctrl-tegra.h> #include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h> #include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/thermal/tegra124-soctherm.h> / { compatible = "nvidia,tegra132", "nvidia,tegra124"; @@ -727,8 +728,10 @@ }; soctherm: thermal-sensor@700e2000 { - compatible = "nvidia,tegra124-soctherm"; - reg = <0x0 0x700e2000 0x0 0x1000>; + compatible = "nvidia,tegra132-soctherm"; + reg = <0x0 0x700e2000 0x0 0x600 /* 0: SOC_THERM reg_base */ + 0x0 0x70040000 0x0 0x200>; /* 2: CCROC reg_base */ + reg-names = "soctherm-reg", "ccroc-reg"; interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; clocks = <&tegra_car TEGRA124_CLK_TSENSOR>, <&tegra_car TEGRA124_CLK_SOC_THERM>; @@ -736,6 +739,118 @@ resets = <&tegra_car 78>; reset-names = "soctherm"; #thermal-sensor-cells = <1>; + + throttle-cfgs { + throttle_heavy: heavy { + nvidia,priority = <100>; + nvidia,cpu-throt-level = <TEGRA_SOCTHERM_THROT_LEVEL_HIGH>; + + #cooling-cells = <2>; + }; + }; + }; + + thermal-zones { + cpu { + polling-delay-passive = <1000>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>; + + trips { + cpu_shutdown_trip { + temperature = <105000>; + hysteresis = <1000>; + type = "critical"; + }; + + cpu_throttle_trip: throttle-trip { + temperature = <102000>; + hysteresis = <1000>; + type = "hot"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; + }; + }; + mem { + polling-delay-passive = <0>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>; + + trips { + mem_shutdown_trip { + temperature = <101000>; + hysteresis = <1000>; + type = "critical"; + }; + }; + + cooling-maps { + /* + * There are currently no cooling maps, + * because there are no cooling devices. + */ + }; + }; + gpu { + polling-delay-passive = <1000>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>; + + trips { + gpu_shutdown_trip { + temperature = <101000>; + hysteresis = <1000>; + type = "critical"; + }; + + gpu_throttle_trip: throttle-trip { + temperature = <99000>; + hysteresis = <1000>; + type = "hot"; + }; + }; + + cooling-maps { + map0 { + trip = <&gpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; + }; + }; + pllx { + polling-delay-passive = <0>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>; + + trips { + pllx_shutdown_trip { + temperature = <105000>; + hysteresis = <1000>; + type = "critical"; + }; + }; + + cooling-maps { + /* + * There are currently no cooling maps, + * because there are no cooling devices. + */ + }; + }; }; ahub@70300000 { diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index f6739797150a..46045fe719da 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -3,6 +3,7 @@ #include <dt-bindings/memory/tegra210-mc.h> #include <dt-bindings/pinctrl/pinctrl-tegra.h> #include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/thermal/tegra124-soctherm.h> / { compatible = "nvidia,tegra210"; @@ -1159,4 +1160,130 @@ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>; interrupt-parent = <&gic>; }; + + soctherm: thermal-sensor@700e2000 { + compatible = "nvidia,tegra210-soctherm"; + reg = <0x0 0x700e2000 0x0 0x600 /* SOC_THERM reg_base */ + 0x0 0x60006000 0x0 0x400>; /* CAR reg_base */ + reg-names = "soctherm-reg", "car-reg"; + interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&tegra_car TEGRA210_CLK_TSENSOR>, + <&tegra_car TEGRA210_CLK_SOC_THERM>; + clock-names = "tsensor", "soctherm"; + resets = <&tegra_car 78>; + reset-names = "soctherm"; + #thermal-sensor-cells = <1>; + + throttle-cfgs { + throttle_heavy: heavy { + nvidia,priority = <100>; + nvidia,cpu-throt-percent = <85>; + + #cooling-cells = <2>; + }; + }; + }; + + thermal-zones { + cpu { + polling-delay-passive = <1000>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>; + + trips { + cpu-shutdown-trip { + temperature = <102500>; + hysteresis = <0>; + type = "critical"; + }; + + cpu_throttle_trip: throttle-trip { + temperature = <98500>; + hysteresis = <1000>; + type = "hot"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; + }; + }; + mem { + polling-delay-passive = <0>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>; + + trips { + mem-shutdown-trip { + temperature = <103000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* + * There are currently no cooling maps, + * because there are no cooling devices. + */ + }; + }; + gpu { + polling-delay-passive = <1000>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>; + + trips { + gpu-shutdown-trip { + temperature = <103000>; + hysteresis = <0>; + type = "critical"; + }; + + gpu_throttle_trip: throttle-trip { + temperature = <100000>; + hysteresis = <1000>; + type = "hot"; + }; + }; + + cooling-maps { + map0 { + trip = <&gpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; + }; + }; + pllx { + polling-delay-passive = <0>; + polling-delay = <0>; + + thermal-sensors = + <&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>; + + trips { + pllx-shutdown-trip { + temperature = <103000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + /* + * There are currently no cooling maps, + * because there are no cooling devices. + */ + }; + }; + }; }; diff --git a/arch/frv/include/asm/pgtable.h b/arch/frv/include/asm/pgtable.h index 07d7a7ef8bd5..a0513d463a1f 100644 --- a/arch/frv/include/asm/pgtable.h +++ b/arch/frv/include/asm/pgtable.h @@ -522,5 +522,6 @@ extern void __init pgtable_cache_init(void); #ifndef __ASSEMBLY__ extern void __init paging_init(void); #endif /* !__ASSEMBLY__ */ +#define HAVE_ARCH_UNMAPPED_AREA #endif /* _ASM_PGTABLE_H */ diff --git a/arch/frv/include/asm/segment.h b/arch/frv/include/asm/segment.h index 4377c89a57f5..2305142d4cf8 100644 --- a/arch/frv/include/asm/segment.h +++ b/arch/frv/include/asm/segment.h @@ -32,7 +32,6 @@ typedef struct { #define get_ds() (KERNEL_DS) #define get_fs() (__current_thread_info->addr_limit) #define segment_eq(a, b) ((a).seg == (b).seg) -#define __kernel_ds_p() segment_eq(get_fs(), KERNEL_DS) #define get_addr_limit() (get_fs().seg) #define set_fs(_x) \ diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h index 87d9e34c5df8..c0f4057eab60 100644 --- a/arch/frv/include/asm/uaccess.h +++ b/arch/frv/include/asm/uaccess.h @@ -20,8 +20,6 @@ #include <asm/segment.h> #include <asm/sections.h> -#define HAVE_ARCH_UNMAPPED_AREA /* we decide where to put mmaps */ - #define __ptr(x) ((unsigned long __force *)(x)) #define VERIFY_READ 0 diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h index 1bdf15263754..36deeb36503b 100644 --- a/arch/m68k/include/asm/uaccess_no.h +++ b/arch/m68k/include/asm/uaccess_no.h @@ -44,9 +44,6 @@ struct exception_table_entry unsigned long insn, fixup; }; -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_exception_table(unsigned long); - /* * These are the main single-value transfer routines. They automatically diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 826676778094..253a67e275ad 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -71,9 +71,6 @@ struct exception_table_entry { unsigned long insn, fixup; }; -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_exception_table(unsigned long); - #ifndef CONFIG_MMU /* Check against bounds of physical memory */ diff --git a/arch/mips/include/asm/extable.h b/arch/mips/include/asm/extable.h new file mode 100644 index 000000000000..dce7a627a925 --- /dev/null +++ b/arch/mips/include/asm/extable.h @@ -0,0 +1,13 @@ +#ifndef _ASM_EXTABLE_H +#define _ASM_EXTABLE_H + +struct exception_table_entry +{ + unsigned long insn; + unsigned long nextinsn; +}; + +struct pt_regs; +extern int fixup_exception(struct pt_regs *regs); + +#endif diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h index 0aaf9a01ea50..702c273e67a9 100644 --- a/arch/mips/include/asm/module.h +++ b/arch/mips/include/asm/module.h @@ -3,7 +3,7 @@ #include <linux/list.h> #include <linux/elf.h> -#include <asm/uaccess.h> +#include <asm/extable.h> struct mod_arch_specific { /* Data Bus Error exception tables */ diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h index 21a2aaba20d5..4daf839cd8a8 100644 --- a/arch/mips/include/asm/uaccess.h +++ b/arch/mips/include/asm/uaccess.h @@ -16,6 +16,7 @@ #include <linux/thread_info.h> #include <linux/string.h> #include <asm/asm-eva.h> +#include <asm/extable.h> /* * The fs value determines whether argument validity checking should be @@ -1485,12 +1486,4 @@ static inline long strnlen_user(const char __user *s, long n) return res; } -struct exception_table_entry -{ - unsigned long insn; - unsigned long nextinsn; -}; - -extern int fixup_exception(struct pt_regs *regs); - #endif /* _ASM_UACCESS_H */ diff --git a/arch/mips/lasat/picvue_proc.c b/arch/mips/lasat/picvue_proc.c index 27533c109f92..dd292dcec684 100644 --- a/arch/mips/lasat/picvue_proc.c +++ b/arch/mips/lasat/picvue_proc.c @@ -16,6 +16,7 @@ #include <linux/timer.h> #include <linux/mutex.h> +#include <linux/uaccess.h> #include "picvue.h" diff --git a/arch/mn10300/include/asm/processor.h b/arch/mn10300/include/asm/processor.h index 769d5ed8e992..b10ba121c849 100644 --- a/arch/mn10300/include/asm/processor.h +++ b/arch/mn10300/include/asm/processor.h @@ -18,7 +18,6 @@ #include <asm/page.h> #include <asm/ptrace.h> #include <asm/cpu-regs.h> -#include <asm/uaccess.h> #include <asm/current.h> /* Forward declaration, a strange C thing */ diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h index d012e877a95a..2eedf6f46a57 100644 --- a/arch/mn10300/include/asm/uaccess.h +++ b/arch/mn10300/include/asm/uaccess.h @@ -38,7 +38,6 @@ #define get_ds() (KERNEL_DS) #define get_fs() (current_thread_info()->addr_limit) #define set_fs(x) (current_thread_info()->addr_limit = (x)) -#define __kernel_ds_p() (current_thread_info()->addr_limit.seg == 0x9FFFFFFF) #define segment_eq(a, b) ((a).seg == (b).seg) @@ -72,12 +71,6 @@ static inline int ___range_ok(unsigned long addr, unsigned int size) #define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0) #define __access_ok(addr, size) (__range_ok((addr), (size)) == 0) -static inline int verify_area(int type, const void *addr, unsigned long size) -{ - return access_ok(type, addr, size) ? 0 : -EFAULT; -} - - /* * The exception table consists of pairs of addresses: the first is the * address of an instruction that is allowed to fault, and the second is diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index dfd0301cf200..cd8cb1d1176b 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -75,7 +75,7 @@ static int restore_sigcontext(struct pt_regs *regs, struct fpucontext *buf; err |= __get_user(buf, &sc->fpucontext); if (buf) { - if (verify_area(VERIFY_READ, buf, sizeof(*buf))) + if (!access_ok(VERIFY_READ, buf, sizeof(*buf))) goto badframe; err |= fpu_restore_sigcontext(buf); } @@ -98,7 +98,7 @@ asmlinkage long sys_sigreturn(void) long d0; frame = (struct sigframe __user *) current_frame()->sp; - if (verify_area(VERIFY_READ, frame, sizeof(*frame))) + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__get_user(set.sig[0], &frame->sc.oldmask)) goto badframe; @@ -130,7 +130,7 @@ asmlinkage long sys_rt_sigreturn(void) long d0; frame = (struct rt_sigframe __user *) current_frame()->sp; - if (verify_area(VERIFY_READ, frame, sizeof(*frame))) + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) goto badframe; diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h index 5cc6b4f1b795..140faa16685a 100644 --- a/arch/openrisc/include/asm/uaccess.h +++ b/arch/openrisc/include/asm/uaccess.h @@ -82,10 +82,6 @@ struct exception_table_entry { unsigned long insn, fixup; }; -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_exception_table(unsigned long); -extern void sort_exception_table(void); - /* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index e44bdb9078a5..c2c43f714684 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -83,10 +83,10 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e)) /* This is the size of the initially mapped kernel memory */ -#if defined(CONFIG_64BIT) || defined(CONFIG_SMP) -#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */ +#if defined(CONFIG_64BIT) +#define KERNEL_INITIAL_ORDER 26 /* 1<<26 = 64MB */ #else -#define KERNEL_INITIAL_ORDER 24 /* 1<<24 = 16MB */ +#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */ #endif #define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER) diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h index 5e953ab4530d..63670231f48a 100644 --- a/arch/parisc/include/asm/traps.h +++ b/arch/parisc/include/asm/traps.h @@ -11,6 +11,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs, void die_if_kernel(char *str, struct pt_regs *regs, long err); /* mm/fault.c */ +const char *trap_name(unsigned long code); void do_page_fault(struct pt_regs *regs, unsigned long code, unsigned long address); #endif diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 97d6b208e129..378df9207406 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -458,8 +458,8 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o } printk("\n"); - printk(KERN_CRIT "%s: Code=%d regs=%p (Addr=" RFMT ")\n", - msg, code, regs, offset); + pr_crit("%s: Code=%d (%s) regs=%p (Addr=" RFMT ")\n", + msg, code, trap_name(code), regs, offset); show_regs(regs); spin_unlock(&terminate_lock); diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index b37787dbe775..3d6ef1b29c6a 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -90,8 +90,9 @@ SECTIONS /* Start of data section */ _sdata = .; - RO_DATA_SECTION(8) - + /* Architecturally we need to keep __gp below 0x1000000 and thus + * in front of RO_DATA_SECTION() which stores lots of tracepoint + * and ftrace symbols. */ #ifdef CONFIG_64BIT . = ALIGN(16); /* Linkage tables */ @@ -106,6 +107,12 @@ SECTIONS } #endif + RO_DATA_SECTION(8) + + /* RO because of BUILDTIME_EXTABLE_SORT */ + EXCEPTION_TABLE(8) + NOTES + /* unwind info */ .PARISC.unwind : { __start___unwind = .; @@ -121,9 +128,6 @@ SECTIONS . = ALIGN(HUGEPAGE_SIZE); data_start = .; - EXCEPTION_TABLE(8) - NOTES - /* Data */ RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE) diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c index 47a6ca4c9e40..8ff9253930af 100644 --- a/arch/parisc/mm/fault.c +++ b/arch/parisc/mm/fault.c @@ -14,7 +14,7 @@ #include <linux/ptrace.h> #include <linux/sched.h> #include <linux/interrupt.h> -#include <linux/module.h> +#include <linux/extable.h> #include <linux/uaccess.h> #include <asm/traps.h> @@ -204,6 +204,16 @@ static const char * const trap_description[] = { [28] "Unaligned data reference trap", }; +const char *trap_name(unsigned long code) +{ + const char *t = NULL; + + if (code < ARRAY_SIZE(trap_description)) + t = trap_description[code]; + + return t ? t : "Unknown trap"; +} + /* * Print out info about fatal segfaults, if the show_unhandled_signals * sysctl is set: @@ -213,8 +223,6 @@ show_signal_msg(struct pt_regs *regs, unsigned long code, unsigned long address, struct task_struct *tsk, struct vm_area_struct *vma) { - const char *trap_name = NULL; - if (!unhandled_signal(tsk, SIGSEGV)) return; @@ -226,10 +234,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long code, tsk->comm, code, address); print_vma_addr(KERN_CONT " in ", regs->iaoq[0]); - if (code < ARRAY_SIZE(trap_description)) - trap_name = trap_description[code]; - pr_warn(KERN_CONT " trap #%lu: %s%c", code, - trap_name ? trap_name : "unknown", + pr_cont(" trap #%lu: %s%c", code, trap_name(code), vma ? ',':'\n'); if (vma) diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 356f38473b5d..e02ada312be8 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -105,6 +105,8 @@ static void * __init get_memblock(unsigned long size) else panic("get_memblock() failed.\n"); + memset(__va(phys), 0, size); + return __va(phys); } diff --git a/arch/score/include/asm/extable.h b/arch/score/include/asm/extable.h new file mode 100644 index 000000000000..c4423ccf830d --- /dev/null +++ b/arch/score/include/asm/extable.h @@ -0,0 +1,11 @@ +#ifndef _ASM_SCORE_EXTABLE_H +#define _ASM_SCORE_EXTABLE_H + +struct exception_table_entry { + unsigned long insn; + unsigned long fixup; +}; + +struct pt_regs; +extern int fixup_exception(struct pt_regs *regs); +#endif diff --git a/arch/score/include/asm/module.h b/arch/score/include/asm/module.h index abf395bbfaba..6dc1f2935eef 100644 --- a/arch/score/include/asm/module.h +++ b/arch/score/include/asm/module.h @@ -2,7 +2,7 @@ #define _ASM_SCORE_MODULE_H #include <linux/list.h> -#include <asm/uaccess.h> +#include <asm/extable.h> #include <asm-generic/module.h> struct mod_arch_specific { diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h index 01aec8ccde83..db58ab98ec4b 100644 --- a/arch/score/include/asm/uaccess.h +++ b/arch/score/include/asm/uaccess.h @@ -4,6 +4,7 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/thread_info.h> +#include <asm/extable.h> #define VERIFY_READ 0 #define VERIFY_WRITE 1 @@ -420,12 +421,5 @@ static inline long strnlen_user(const char __user *str, long len) return __strnlen_user(str, len); } -struct exception_table_entry { - unsigned long insn; - unsigned long fixup; -}; - -extern int fixup_exception(struct pt_regs *regs); - #endif /* __SCORE_UACCESS_H */ diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h index 92ade79ac427..a38d0c7b818f 100644 --- a/arch/sh/include/asm/uaccess.h +++ b/arch/sh/include/asm/uaccess.h @@ -192,8 +192,6 @@ struct exception_table_entry { #endif int fixup_exception(struct pt_regs *regs); -/* Returns 0 if exception not found and fixup.unit otherwise. */ -unsigned long search_exception_table(unsigned long addr); const struct exception_table_entry *search_exception_tables(unsigned long addr); extern void *set_exception_table_vec(unsigned int vec, void *handler); diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h index 93310837c2df..3f2d403873bd 100644 --- a/arch/sparc/include/asm/elf_64.h +++ b/arch/sparc/include/asm/elf_64.h @@ -7,7 +7,7 @@ #include <asm/ptrace.h> #include <asm/processor.h> -#include <asm/uaccess.h> +#include <asm/extable_64.h> #include <asm/spitfire.h> /* diff --git a/arch/sparc/include/asm/extable_64.h b/arch/sparc/include/asm/extable_64.h new file mode 100644 index 000000000000..1121cb056ffb --- /dev/null +++ b/arch/sparc/include/asm/extable_64.h @@ -0,0 +1,20 @@ +#ifndef __ASM_EXTABLE64_H +#define __ASM_EXTABLE64_H +/* + * The exception table consists of pairs of addresses: the first is the + * address of an instruction that is allowed to fault, and the second is + * the address at which the program should continue. No registers are + * modified, so it is entirely up to the continuation code to figure out + * what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +struct exception_table_entry { + unsigned int insn, fixup; +}; + +#endif diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h index 37a315d0ddd4..b68acc563235 100644 --- a/arch/sparc/include/asm/uaccess_64.h +++ b/arch/sparc/include/asm/uaccess_64.h @@ -13,6 +13,7 @@ #include <asm/asi.h> #include <asm/spitfire.h> #include <asm-generic/uaccess-unaligned.h> +#include <asm/extable_64.h> #endif #ifndef __ASSEMBLY__ @@ -81,23 +82,6 @@ static inline int access_ok(int type, const void __user * addr, unsigned long si return 1; } -/* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out - * what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry { - unsigned int insn, fixup; -}; - void __ret_efault(void); void __retl_efault(void); diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h index 61518cf79437..872877d930de 100644 --- a/arch/x86/include/asm/cacheflush.h +++ b/arch/x86/include/asm/cacheflush.h @@ -4,7 +4,6 @@ /* Caches aren't brain-dead on the intel. */ #include <asm-generic/cacheflush.h> #include <asm/special_insns.h> -#include <asm/uaccess.h> /* * The set_memory_* API can be used to change various attributes of a virtual diff --git a/arch/x86/include/asm/extable.h b/arch/x86/include/asm/extable.h new file mode 100644 index 000000000000..b8ad261d11dc --- /dev/null +++ b/arch/x86/include/asm/extable.h @@ -0,0 +1,35 @@ +#ifndef _ASM_X86_EXTABLE_H +#define _ASM_X86_EXTABLE_H +/* + * The exception table consists of triples of addresses relative to the + * exception table entry itself. The first address is of an instruction + * that is allowed to fault, the second is the target at which the program + * should continue. The third is a handler function to deal with the fault + * caused by the instruction in the first field. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +struct exception_table_entry { + int insn, fixup, handler; +}; +struct pt_regs; + +#define ARCH_HAS_RELATIVE_EXTABLE + +#define swap_ex_entry_fixup(a, b, tmp, delta) \ + do { \ + (a)->fixup = (b)->fixup + (delta); \ + (b)->fixup = (tmp).fixup - (delta); \ + (a)->handler = (b)->handler + (delta); \ + (b)->handler = (tmp).handler - (delta); \ + } while (0) + +extern int fixup_exception(struct pt_regs *regs, int trapnr); +extern bool ex_has_fault_handler(unsigned long ip); +extern void early_fixup_exception(struct pt_regs *regs, int trapnr); + +#endif diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h index 13b6cdd0af57..2f75f30cb2f6 100644 --- a/arch/x86/include/asm/sections.h +++ b/arch/x86/include/asm/sections.h @@ -2,7 +2,7 @@ #define _ASM_X86_SECTIONS_H #include <asm-generic/sections.h> -#include <asm/uaccess.h> +#include <asm/extable.h> extern char __brk_base[], __brk_limit[]; extern struct exception_table_entry __stop___ex_table[]; diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 2131c4ce7d8a..faf3687f1035 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -11,6 +11,7 @@ #include <asm/asm.h> #include <asm/page.h> #include <asm/smap.h> +#include <asm/extable.h> #define VERIFY_READ 0 #define VERIFY_WRITE 1 @@ -91,37 +92,6 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un likely(!__range_not_ok(addr, size, user_addr_max())) /* - * The exception table consists of triples of addresses relative to the - * exception table entry itself. The first address is of an instruction - * that is allowed to fault, the second is the target at which the program - * should continue. The third is a handler function to deal with the fault - * caused by the instruction in the first field. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry { - int insn, fixup, handler; -}; - -#define ARCH_HAS_RELATIVE_EXTABLE - -#define swap_ex_entry_fixup(a, b, tmp, delta) \ - do { \ - (a)->fixup = (b)->fixup + (delta); \ - (b)->fixup = (tmp).fixup - (delta); \ - (a)->handler = (b)->handler + (delta); \ - (b)->handler = (tmp).handler - (delta); \ - } while (0) - -extern int fixup_exception(struct pt_regs *regs, int trapnr); -extern bool ex_has_fault_handler(unsigned long ip); -extern void early_fixup_exception(struct pt_regs *regs, int trapnr); - -/* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. * diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 4dc13340653e..9f72ca3b2669 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -5,7 +5,7 @@ */ #include <linux/sched.h> /* test_thread_flag(), ... */ #include <linux/kdebug.h> /* oops_begin/end, ... */ -#include <linux/extable.h> /* search_exception_table */ +#include <linux/extable.h> /* search_exception_tables */ #include <linux/bootmem.h> /* max_low_pfn */ #include <linux/kprobes.h> /* NOKPROBE_SYMBOL, ... */ #include <linux/mmiotrace.h> /* kmmio_handler, ... */ diff --git a/arch/xtensa/include/asm/asm-uaccess.h b/arch/xtensa/include/asm/asm-uaccess.h new file mode 100644 index 000000000000..a7a110039786 --- /dev/null +++ b/arch/xtensa/include/asm/asm-uaccess.h @@ -0,0 +1,160 @@ +/* + * include/asm-xtensa/uaccess.h + * + * User space memory access functions + * + * These routines provide basic accessing functions to the user memory + * space for the kernel. This header file provides functions such as: + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001 - 2005 Tensilica Inc. + */ + +#ifndef _XTENSA_ASM_UACCESS_H +#define _XTENSA_ASM_UACCESS_H + +#include <linux/errno.h> +#include <asm/types.h> + +#define VERIFY_READ 0 +#define VERIFY_WRITE 1 + +#include <asm/current.h> +#include <asm/asm-offsets.h> +#include <asm/processor.h> + +/* + * These assembly macros mirror the C macros in asm/uaccess.h. They + * should always have identical functionality. See + * arch/xtensa/kernel/sys.S for usage. + */ + +#define KERNEL_DS 0 +#define USER_DS 1 + +#define get_ds (KERNEL_DS) + +/* + * get_fs reads current->thread.current_ds into a register. + * On Entry: + * <ad> anything + * <sp> stack + * On Exit: + * <ad> contains current->thread.current_ds + */ + .macro get_fs ad, sp + GET_CURRENT(\ad,\sp) +#if THREAD_CURRENT_DS > 1020 + addi \ad, \ad, TASK_THREAD + l32i \ad, \ad, THREAD_CURRENT_DS - TASK_THREAD +#else + l32i \ad, \ad, THREAD_CURRENT_DS +#endif + .endm + +/* + * set_fs sets current->thread.current_ds to some value. + * On Entry: + * <at> anything (temp register) + * <av> value to write + * <sp> stack + * On Exit: + * <at> destroyed (actually, current) + * <av> preserved, value to write + */ + .macro set_fs at, av, sp + GET_CURRENT(\at,\sp) + s32i \av, \at, THREAD_CURRENT_DS + .endm + +/* + * kernel_ok determines whether we should bypass addr/size checking. + * See the equivalent C-macro version below for clarity. + * On success, kernel_ok branches to a label indicated by parameter + * <success>. This implies that the macro falls through to the next + * insruction on an error. + * + * Note that while this macro can be used independently, we designed + * in for optimal use in the access_ok macro below (i.e., we fall + * through on error). + * + * On Entry: + * <at> anything (temp register) + * <success> label to branch to on success; implies + * fall-through macro on error + * <sp> stack pointer + * On Exit: + * <at> destroyed (actually, current->thread.current_ds) + */ + +#if ((KERNEL_DS != 0) || (USER_DS == 0)) +# error Assembly macro kernel_ok fails +#endif + .macro kernel_ok at, sp, success + get_fs \at, \sp + beqz \at, \success + .endm + +/* + * user_ok determines whether the access to user-space memory is allowed. + * See the equivalent C-macro version below for clarity. + * + * On error, user_ok branches to a label indicated by parameter + * <error>. This implies that the macro falls through to the next + * instruction on success. + * + * Note that while this macro can be used independently, we designed + * in for optimal use in the access_ok macro below (i.e., we fall + * through on success). + * + * On Entry: + * <aa> register containing memory address + * <as> register containing memory size + * <at> temp register + * <error> label to branch to on error; implies fall-through + * macro on success + * On Exit: + * <aa> preserved + * <as> preserved + * <at> destroyed (actually, (TASK_SIZE + 1 - size)) + */ + .macro user_ok aa, as, at, error + movi \at, __XTENSA_UL_CONST(TASK_SIZE) + bgeu \as, \at, \error + sub \at, \at, \as + bgeu \aa, \at, \error + .endm + +/* + * access_ok determines whether a memory access is allowed. See the + * equivalent C-macro version below for clarity. + * + * On error, access_ok branches to a label indicated by parameter + * <error>. This implies that the macro falls through to the next + * instruction on success. + * + * Note that we assume success is the common case, and we optimize the + * branch fall-through case on success. + * + * On Entry: + * <aa> register containing memory address + * <as> register containing memory size + * <at> temp register + * <sp> + * <error> label to branch to on error; implies fall-through + * macro on success + * On Exit: + * <aa> preserved + * <as> preserved + * <at> destroyed + */ + .macro access_ok aa, as, at, sp, error + kernel_ok \at, \sp, .Laccess_ok_\@ + user_ok \aa, \as, \at, \error +.Laccess_ok_\@: + .endm + +#endif /* _XTENSA_ASM_UACCESS_H */ diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h index 147b26ed9c91..848a3d736bcb 100644 --- a/arch/xtensa/include/asm/uaccess.h +++ b/arch/xtensa/include/asm/uaccess.h @@ -17,153 +17,12 @@ #define _XTENSA_UACCESS_H #include <linux/errno.h> -#ifndef __ASSEMBLY__ #include <linux/prefetch.h> -#endif #include <asm/types.h> #define VERIFY_READ 0 #define VERIFY_WRITE 1 -#ifdef __ASSEMBLY__ - -#include <asm/current.h> -#include <asm/asm-offsets.h> -#include <asm/processor.h> - -/* - * These assembly macros mirror the C macros that follow below. They - * should always have identical functionality. See - * arch/xtensa/kernel/sys.S for usage. - */ - -#define KERNEL_DS 0 -#define USER_DS 1 - -#define get_ds (KERNEL_DS) - -/* - * get_fs reads current->thread.current_ds into a register. - * On Entry: - * <ad> anything - * <sp> stack - * On Exit: - * <ad> contains current->thread.current_ds - */ - .macro get_fs ad, sp - GET_CURRENT(\ad,\sp) -#if THREAD_CURRENT_DS > 1020 - addi \ad, \ad, TASK_THREAD - l32i \ad, \ad, THREAD_CURRENT_DS - TASK_THREAD -#else - l32i \ad, \ad, THREAD_CURRENT_DS -#endif - .endm - -/* - * set_fs sets current->thread.current_ds to some value. - * On Entry: - * <at> anything (temp register) - * <av> value to write - * <sp> stack - * On Exit: - * <at> destroyed (actually, current) - * <av> preserved, value to write - */ - .macro set_fs at, av, sp - GET_CURRENT(\at,\sp) - s32i \av, \at, THREAD_CURRENT_DS - .endm - -/* - * kernel_ok determines whether we should bypass addr/size checking. - * See the equivalent C-macro version below for clarity. - * On success, kernel_ok branches to a label indicated by parameter - * <success>. This implies that the macro falls through to the next - * insruction on an error. - * - * Note that while this macro can be used independently, we designed - * in for optimal use in the access_ok macro below (i.e., we fall - * through on error). - * - * On Entry: - * <at> anything (temp register) - * <success> label to branch to on success; implies - * fall-through macro on error - * <sp> stack pointer - * On Exit: - * <at> destroyed (actually, current->thread.current_ds) - */ - -#if ((KERNEL_DS != 0) || (USER_DS == 0)) -# error Assembly macro kernel_ok fails -#endif - .macro kernel_ok at, sp, success - get_fs \at, \sp - beqz \at, \success - .endm - -/* - * user_ok determines whether the access to user-space memory is allowed. - * See the equivalent C-macro version below for clarity. - * - * On error, user_ok branches to a label indicated by parameter - * <error>. This implies that the macro falls through to the next - * instruction on success. - * - * Note that while this macro can be used independently, we designed - * in for optimal use in the access_ok macro below (i.e., we fall - * through on success). - * - * On Entry: - * <aa> register containing memory address - * <as> register containing memory size - * <at> temp register - * <error> label to branch to on error; implies fall-through - * macro on success - * On Exit: - * <aa> preserved - * <as> preserved - * <at> destroyed (actually, (TASK_SIZE + 1 - size)) - */ - .macro user_ok aa, as, at, error - movi \at, __XTENSA_UL_CONST(TASK_SIZE) - bgeu \as, \at, \error - sub \at, \at, \as - bgeu \aa, \at, \error - .endm - -/* - * access_ok determines whether a memory access is allowed. See the - * equivalent C-macro version below for clarity. - * - * On error, access_ok branches to a label indicated by parameter - * <error>. This implies that the macro falls through to the next - * instruction on success. - * - * Note that we assume success is the common case, and we optimize the - * branch fall-through case on success. - * - * On Entry: - * <aa> register containing memory address - * <as> register containing memory size - * <at> temp register - * <sp> - * <error> label to branch to on error; implies fall-through - * macro on success - * On Exit: - * <aa> preserved - * <as> preserved - * <at> destroyed - */ - .macro access_ok aa, as, at, sp, error - kernel_ok \at, \sp, .Laccess_ok_\@ - user_ok \aa, \as, \at, \error -.Laccess_ok_\@: - .endm - -#else /* __ASSEMBLY__ not defined */ - #include <linux/sched.h> /* @@ -495,16 +354,4 @@ struct exception_table_entry unsigned long insn, fixup; }; -/* Returns 0 if exception not found and fixup.unit otherwise. */ - -extern unsigned long search_exception_table(unsigned long addr); -extern void sort_exception_table(void); - -/* Returns the new pc */ -#define fixup_exception(map_reg, fixup_unit, pc) \ -({ \ - fixup_unit; \ -}) - -#endif /* __ASSEMBLY__ */ #endif /* _XTENSA_UACCESS_H */ diff --git a/arch/xtensa/kernel/coprocessor.S b/arch/xtensa/kernel/coprocessor.S index a482df5df2b2..6911e384f608 100644 --- a/arch/xtensa/kernel/coprocessor.S +++ b/arch/xtensa/kernel/coprocessor.S @@ -17,7 +17,7 @@ #include <asm/processor.h> #include <asm/coprocessor.h> #include <asm/thread_info.h> -#include <asm/uaccess.h> +#include <asm/asm-uaccess.h> #include <asm/unistd.h> #include <asm/ptrace.h> #include <asm/current.h> diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index fa04d9d368a7..f5ef3cc0497c 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -17,7 +17,7 @@ #include <asm/processor.h> #include <asm/coprocessor.h> #include <asm/thread_info.h> -#include <asm/uaccess.h> +#include <asm/asm-uaccess.h> #include <asm/unistd.h> #include <asm/ptrace.h> #include <asm/current.h> |
